68238666980 has 48 divisors (see below), whose sum is σ = 158470107264. Its totient is φ = 24474136320.

The previous prime is 68238666959. The next prime is 68238666997. The reversal of 68238666980 is 8966683286.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2108432 + ... + 2140551.

It is an arithmetic number, because the mean of its divisors is an integer number (3301460568).

Almost surely, 2^68238666980 is an apocalyptic number.

It is an amenable number.

68238666980 is an abundant number, since it is smaller than the sum of its proper divisors (90231440284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68238666980 is a wasteful number, since it uses less digits than its factorization.

68238666980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249076 (or 4249074 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 62.

The spelling of 68238666980 in words is "sixty-eight billion, two hundred thirty-eight million, six hundred sixty-six thousand, nine hundred eighty".